1161516505402 has 32 divisors (see below), whose sum is σ = 1919336114304. Its totient is φ = 527145250720.

The previous prime is 1161516505343. The next prime is 1161516505403. The reversal of 1161516505402 is 2045056151611.

It is not an unprimeable number, because it can be changed into a prime (1161516505403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385118 + ... + 2059510.

It is an arithmetic number, because the mean of its divisors is an integer number (59979253572).

Almost surely, 2^{1161516505402} is an apocalyptic number.

1161516505402 is a deficient number, since it is larger than the sum of its proper divisors (757819608902).

1161516505402 is an equidigital number, since it uses as much as digits as its factorization.

1161516505402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675075 (or 675053 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 1161516505402 in words is "one trillion, one hundred sixty-one billion, five hundred sixteen million, five hundred five thousand, four hundred two".